- Page 1 and 2: A CONTINGENT VALUATION OF RIVER WAT
- Page 3 and 4: ACKNOWLEDGEMENTS My sincere gratitu
- Page 5 and 6: Four estuaries, the Swartkops, Kari
- Page 7 and 8: CONTENTS Abbreviations…………
- Page 9 and 10: 2.3.3 Step 3: Calculating average b
- Page 11 and 12: 5.6 Identifying the target populati
- Page 13 and 14: 9.3 Conclusion on the appropriatene
- Page 15 and 16: 7.1 Number of questionnaires comple
- Page 17: 7.12 Relative importance attached t
- Page 21 and 22: The focus of attention in this stud
- Page 23 and 24: 1.3.1 Permanently open estuaries Pe
- Page 25 and 26: elic estuarine biota sometimes surv
- Page 27 and 28: R141 000 per ha in nutrient cycling
- Page 29 and 30: 1.6.3 Submerged large plants (macro
- Page 31 and 32: dependence on estuaries as nursery
- Page 33 and 34: 1.9 Passive users of estuaries Peop
- Page 35 and 36: 1.11 Conservation and management of
- Page 37 and 38: CHAPTER 2: VALUING ESTUARIES USING
- Page 39 and 40: like boatable space and probability
- Page 41 and 42: 2.2 The Contingent Valuation Method
- Page 43 and 44: 2.3 The stages in applying the CVM
- Page 45 and 46: approach selected can influence the
- Page 47 and 48: d. Bidding Game Respondents are fac
- Page 49 and 50: tests (Hair et al, 1998). In order
- Page 51 and 52: • Asking why a zero WTP was offer
- Page 53 and 54: 2.3.5.3. Bias due to scenario missp
- Page 55 and 56: Avidity bias - Avid users of a reso
- Page 57 and 58: incorporating both non-use (passive
- Page 59 and 60: Table 3.1: Eastern Cape water suppl
- Page 61 and 62: 3.3.1 Physical description The Swar
- Page 63 and 64: each) where the least marine exchan
- Page 65 and 66: Figure 3.2: Street map of residenti
- Page 67 and 68: The Swartkops estuary provides a ha
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main mud-banks are situated, from S
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Figure 3.3: A bait digger holds a p
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3.3.3.3 Commercial and industrial u
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The biggest user group are resident
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Other changes would be increases in
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Kenton-on-sea falls within the Ndla
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Table 4.1: Kenton-on-Sea total popu
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4.3 Water demand in the Ndlambe mun
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namely sea water desalination, a da
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trips or trails for bird and nature
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4.5.4 Agricultural uses Upstream, t
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4.7 Setting scenarios of changes of
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CHAPTER 5: THE MNGAZI ESTUARY Chapt
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The estuary has a low botanical imp
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The Mngazi River Bungalows is one o
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ecause of increasing demand for fre
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Bird watching: Birds like the Pied
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In a random interview of three youn
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throughout the year. Table 5.1 belo
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sample size of 1,8%. Although this
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5.6 Setting scenarios of changes of
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CHAPTER 6: THE MNGAZANA ESTUARY Cha
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(meanders). The Mngazana estuary ha
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6.4 Permanent residents There are a
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6.4.1 Recreational uses Fishing: Re
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Table 6.3: Local selling prices of
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Table 6.5: Estimated household user
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CHAPTER 7: ANALYSIS OF RESPONSES 7.
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7.2.2 Socio-economic characteristic
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Most of the estuary users interview
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No. of people 250 200 150 100 50 0
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No. of people 350 300 250 200 150 1
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preservation of unique estuary feat
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For the four estuaries surveyed in
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CHAPTER 8: THE FITTING OF WTP FUNCT
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models, of yielding parameters that
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Table 8.3: The Swartkops estuary pr
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Table 8.4: The Kariega estuary - bi
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8.5.1 Tobit models (complete and re
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8.6.1 Tobit models (complete and re
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Table 8.10: Predicted mean and medi
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8.8.2 Reliability (repeatability) i
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CHAPTER 9: CONCLUSION AND RECOMMEND
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other three are based in rural area
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encountered. However, these turned
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9.6 Some recommendations by estuary
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Table 9.5: The Mngazi estuary users
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REFERENCES ACKS, K. (1995). Tools f
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BATEMAN, I.J., LANGFORD, I.H. AND R
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COWAN, G.I., DINI, J., VAN DER WALT
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FRAZIER, S. (1996). An overview of
- Page 171 and 172:
Elizabeth: University of Port Eliza
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MCNULTY, E. (2003). Personal commun
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PRADERVAND, P. (1998). An assessmen
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TIETENBERG, T. (2000). Environmenta
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APPENDICES APPENDIX 1: Characterisa
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Region ¹ M outh type ¹ S cientifi
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Region ¹ M outh type ¹ S cientifi
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APPENDIX 2: Standard questionnaire
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9. OF THE MEMBERS OF YOUR HOUSEHOLD
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13. IF YOUR ANSWER TO EITHER OF THE
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APPENDIX 3: Field experiences - Swa
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APPENDIX 4: Some common birds found
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APPENDIX 6: Field experiences - Kar
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APPENDIX 8: Some common fish found
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estuary. The Zoology and Botany res
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APPENDIX 11: Field experiences - Mn
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APPENDIX 12: Some common fish found
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APPENDIX 14: Common birds in the Mn
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Source: SA Post Office (2004a) 188
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Source: SA Post Office (2004b) 190
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Appendix 18: Additional comments by
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REFERENCES TO APPENDICES DIAZ CROSS